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PatchSiren cyber security CVE debrief

CVE-2021-25370 Samsung CVE debrief

CVE-2021-25370 is a Samsung Mobile Devices memory corruption vulnerability that CISA added to its Known Exploited Vulnerabilities catalog on 2022-11-08. Because it is listed in KEV, defenders should treat it as a high-priority patching item and apply Samsung’s vendor updates as soon as possible.

Vendor
Samsung
Product
Mobile Devices
CVSS
MEDIUM 6.1
CISA KEV
Listed
Original CVE published
2022-11-08
Original CVE updated
2022-11-08
Advisory published
2022-11-08
Advisory updated
2022-11-08

Who should care

Security and IT teams managing Samsung mobile devices, especially enterprise mobile fleets, endpoint management teams, and organizations that rely on Samsung devices for business use.

Technical summary

The supplied corpus identifies the issue as a memory corruption vulnerability affecting Samsung Mobile Devices. CISA’s KEV entry signals that the vulnerability is known to be exploited in the wild. The source data does not include affected versions, attack prerequisites, or a CVSS score, so defenders should rely on Samsung’s official update guidance and verify exposure through asset inventory and patch status checks.

Defensive priority

Urgent

Recommended defensive actions

  • Apply Samsung security updates per vendor instructions as soon as possible.
  • Inventory Samsung mobile devices and confirm which assets are affected and patched.
  • Prioritize remediation for devices used for sensitive access or managed in enterprise fleets.
  • Track compliance and remove or isolate unsupported devices that cannot be updated.
  • Monitor the official CVE, NVD, and CISA KEV records for any scope or guidance updates.

Evidence notes

CISA’s Known Exploited Vulnerabilities catalog lists this issue as “Samsung Mobile Devices Memory Corruption Vulnerability,” with dateAdded 2022-11-08 and dueDate 2022-11-29. The KEV metadata instructs administrators to apply updates per vendor instructions and references the official CVE and NVD records. The supplied corpus does not provide a CVSS score or affected-version detail.

Sources and references

Verified primary and authoritative sources

  • CVE-2021-25370 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2021-25370

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2021-25370 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2021-25370

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

  • CISA Known Exploited Vulnerabilities catalog

    Publisher, destination, and source semantics verified

    URL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog

    Cybersecurity and Infrastructure Security Agency - Official CISA catalog of vulnerabilities known to be exploited in the wild.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

    cisa_kev

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.